Improvement in adjustable plow-stocks



J. K. KIRKSLTY. Adjustable Plow-Stock.

No. 207,530 Patnted Aug. 27,1878.

UNITED STATES PATENT OEEIcE.

JAMES K. KIRKSEY, OF DICKENS COUNTY, SOUTH CAROLINA.

IMPROVEMENT IN ADJUSTABLE PLOW-STOCKS.

Specification forming part of Letters Patent No. 207,530, dated August27, 1878 application filed August 3, 1878.

To all whom "it may concern:

Be it known that 1, JAMES K. KIRKSEY, of the county of Pickens and Stateof South Carolina, have invented new and useful Improvements inAdjustable Plow Stocks, of which the following is a specification:

My invention consists in the peculiar means employed for adjusting theplow stock or foot, as fully described hereinafter, and shown in theaccompanying drawings, in which Figure 1 represents in side elevation,Fig. 2 in a plan view, and Fig. 3 in a longitudinal vertical section, somuch of a plow as is neccessary to illustrate my invention; and Fig. 4:is a perspective view of the wedge or shoe E.

In the above figures of the drawings similar letters of reference areemployed to indicate corresponding parts wherever such may occur.

A represents the plow-beam, provided with the handles a, both of anyusual or preferred construction. B represents a bearing-plate, the upperface of which is serrated transverscly. Said plate is bolted orotherwise secured to the beam A at or near its rear end. Thebearing-plate B is provided at its forward end with a verticalprojection or standard, I), through an enlarged aperture or verticalslot, 1), of which passes the screw-threaded end of a brace-rod, O, therear end of which forms a bearing, and is loosely mounted upon abraceshaft, (1, between the arms D D of the plowfootD. This plow-footispreferably U-shaped, the outer ends of the arms D being curved forward,the body of the stock having the usual or any desired curve.

Instead of forming the plow-stock as described, I may, under somecircumstances, construct it in the usual manner, and provide saidplow-stock at its upper end with a forwardly curved and forked bearing.

The plow-foot 1) is pivoted to the plow-bear at (1, while the curvedupper ends of the stock are connected together by means of thebraceshaft d and suitable locking-nuts. v

E represents a wedge or shoe, composed of the base 6, which is providedwith transverse serrations corresponding with the serrations of thebearing-plate B, and the inclined sides 0, each of which is providedwith a series of notches or recesses, e", for the reception of thebrace-shaft d.

The adjustment of the stock is effected as follows: Supposing the partsto be in the position shown by Fig. 1, and it is desired to give to theplow foot or stock a greater forward inclination, the brace-rod 0,locked to the standard I) of the bearing-plate B by means of thetightening-nut c, is first released, the nut being unscrewedsufficiently to permit 'of the plow-foot being swung forward upon itspivot (1/ until it (the plow-foot) has the desired forward inclination.The forward motion of the foot retracts the curved ends thereof from thewedge or shoe E, which may now be raised and pushed under thebrace-shaft, so that the latter will lie in two opposite recesses, 6',when the brace-rod O is again locked to the standard I) by means of thenut c. The forward pressure of the shaft d upon the wedge, caused by thetightening of the rod 0 by means of the nut c,locks the wedge or shoesecurely to the bearing-plate, to prevent any further forward motion ofthe curved ends of the plow-foot, while the brace-rod O braces the footand prevents any backward motion of said curved arms D of the plow-footD, while the serrations upon the upper and under faces, respectively, ofthe bearing-plate and wedge or shoe will secure the latter against anyaccidental slipping upon said bearing-plate from any cause.

Having now described my invention, what I claim, and desire to secure byLetters Patent, is

1. The combination,with the plow-beam and the curved arms D of theplow-stock, of the shaft d, rod O, nut c, bearing-plate B, and wedge orshoe E, substantially as and for the purpose specified.

2. The combination of the bearing-plate B, having its upper faceserrated, and the wedge or shoe E, having its under face serrated andits sides provided with a series of recesses, of the shaft d, brace-rodO, nut c, the curved arms D of the pivoted plow-stock D, and theplow-beam A, all constructed and operating substantially as shown anddescribed. I

In witness that I claim the foregoing 1 have hereunto set my hand andseal this 1st day of August, 1878.

JAMES K. KIRKSEY.

Witnesses:

J OAB MAULDIN, WHITNER SYMMEs.

